/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Universal charset detector code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *          lujun <lujun59@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#pragma once

#include "uchardet/nscore.h"
#include "uchardet/nsUniversalDetector.h"
#include <string>
#include <stddef.h>

using std::string;

class Uchardet : public nsUniversalDetector
{
protected:
	string m_charset;

public:
    Uchardet():nsUniversalDetector(NS_FILTER_ALL)
    {}

    virtual ~Uchardet()
    {}

    virtual void Report(const char* charset)
    {
        m_charset = charset;
    }

    const char* getCharset(const char * buf,unsigned int size) 
    {
		m_charset = "";
		if(size==0)
			return "";
        nsUniversalDetector::Reset();
		nsresult ret = nsUniversalDetector::HandleData(buf, size);
    	if(ret != NS_OK)
			return "";
		nsUniversalDetector::DataEnd();

        return m_charset.c_str();
    }
	const char * getCharset(string & data)
	{
		return this->getCharset(data.c_str(),data.size());
	}
};

